Radiator cap



NOV. 24, 1931. G, A, FERR|ER 1,833,833

RADIATOR CAP Filed Jan. 14, 1929 INVENTOR.

[I E :11 E E A.Errie1* ATTORN EYS.

Patented Nov. 24, 1931 a 1,833,833

V UNITED STATES PATENT OFFICE;

Application filed January 14, 1929. Serial 1T0. 332,440.

' The present invention relates to closure a valve means capable of being unseated caps primarily intended for use upon radiato allow water to pass freely into the rators of motor vehicles, and theprimary obdiator B. I Y I r ject of the invention is to provide a valved Referring first to'the specificcon'struction' 5 radiator cap which may be readily substiand formation of the/shell orcasi ng A, the

tuted for the present types of radiator caps same is formed with a globular main body requiring removal of the cap toallow filling portion 5 having a tubular neck 6fopening of the radiator. at itsupper end. Formed at the lower end A further object of the invention is to proof the body portion 5 is a tubular sleeve por- 10 vide a radiator cap having valve closure tion 7 having an attaching cap portion 8 at means adapted to be unseated by the inserits lower end which in the example shown tion' of a hose nozzle or the like into the cap is internally threaded for threaded connecfor allowing free passage of water thru the tion with the filler neck or extension 9 of the cap into the radiator, with the closure means radiator B. The sleeve portion 7 is inter- 15 automatically closing the passageway thru nally threaded as-at 10 and as will be obthe cap upon withdrawal of the nozzle from served in Figure 1 is disposed in axial alignthe cap. ment with the tubular neck 6. i

A further object of the invention is to The valve means G which operates for all provide a radiator cap of this character havtomatically closing the passageway thru the 20 ing a main body portion of such formation shell or casing A, includes a valve disc 11 hav 05 I as to prevent splashing of water out ofthe ing a tapering" peripheral face for engage cap during filling of the radiator. ment with a tapering valve seat 12 formed A still further object of the invention is at the lower side of thecap portion 8 about to provide a valved radiator cap which will the inner end of the tubular sleeve portion 7 one which will not require removal of the posed stem 13 which projectsoutwardly thru cap from the radiator for filling the radiator. the globularbody portion 5 with its thread- 7 Other objects and advantages of the in ed outer end 14 preferably terminating slightvention willfbe apparent during the course 1y inward of the end of the neck 6 when the of the following detailed description, taken valve disc is resting on the seat 12. A guide in connection with the accompanying draw- 15 is provided for the valve stem, and this ings forming a part of this specification and guide preferably consists of an arm extend ng in which drawings: 4 diametrically of the sleeve 7, and having Figure 1 is a central vertical section thru threaded ends 16 for screw threaded engagethe improved radiator cap shown applied ment with the threads 10 formed internally to the filler neck of a radiator. ,7 of the sleeve 7 The guide arm isprovided Figure 2 is a top plan view of the cap. at its longitudinal center with aguide open- Figure 8 is a section on line 3-3 of Figing 17 thru which the preferably cylindrical ure 1. valve stem has free sliding movement.

49 Referring to the drawings in detail, and Adapted for connection with the outer or wherein similar reference characters desigupper end of the valve stem 13 is a push nate corresponding parts thruout the several member or spider ncludmga hub portion 20 views, the improved cap has been shown infor threaded connection with the threaded cluding'a shell or casing A shownattac'hed stem portion14, and a series of radiallyex be neat and ornamental in appearance, and The disc 11 isprovided with an axially dis- 7 45 to a radiator B, said shell or casing housing tending spokes or arms 21 having their ends spaced slightly from the internal surface of the neck 6. This push member or spider aside from serving a purpose to be subsequently explained, serves as a keeper for a cup-shaped spring seat washer 22 thru which the valve stem 13 projects. Encircling the valve stem 13 is an expansion coil spring 25 the upper end of which seats in the concaved inner side of the washer 22 and the lower end of which seats upon the outer end of the tubular sleeve 7 in a manner whereby the spring acts to normally seat the valve disc 11 on the valve seat12. The spiral spring 25 ispreferably of conical formation as shown so as to be accommodated at its upper or outer end in thesmall seating washer 22and have itslarger lower end seat about the edge of the opening thruthe sleeve 7. This arrangement allows for the washer 22 to be relatively small, while the opening thru the sleeve 7 will be such as to allow ready and free passage of Water thru the sleeve into the radiator.

When filling the radiator, it is merely necessary to place the nozzle .01" other like dis- 1 20- and be radially spread into the large chamber formed by the globular body portion 5. Thiseven radial spreading ofthe water by the Washer 22 against the annular sloping walls of the globular body portion 5 will prevent anysplashing of the water during the filling operation. Since the valve disc is unseated by slight inward pressure exerted on the noz z'le 30, the water entering the chamber of the globular body portion 5 will pass freely thru the sleeve 7 into the radiator thru the radiator filler neck 9. When the nozzle 30 is Withdrawn from the casing, the spring 25 will automatically reseat the valvedisc 11 and prevent escape'of water from theradiaton Thus it will beseen that the radiator may be filled thru the improved radiator cap without requiring removal of the cap from the radiator. V

. With the type of radiator filler cap as shown it will be seen that inconveniences such asrequiring unscrewing or unsnapping of the cap will be eliminated when desiring to place water in the radiator. Thus the cap will last over a considerably period of time since there is no likelihood of injury being done the threads either of the cap or the radiator thru frequent removal of the cap in order to refill the radiator. The valve means of the device is simple and durable and so constructed as to permitof replacements bethe invention or the scope of the following claims.

I claim: 1. A filler cap comprisinga hollow'casing having axially aligning openings at its upper and lower ends, a valve including a valve disc closing the lower opening and a. stem ex- ,tendingupwardly thru the casing, a spider carried by the upper end of the stem and arranged within the upper opening,'and spring openings at its upper and lower, sides, a valve vertically guided in the casing including a disc for closing the lower opening and a stem "means normally urging the valve disc up- ,wardly into a closed position. 7

2'. A filler cap comprising a casing em-- bodying a globular body portion having projecting upwardly into the upper opening,

a spider carried by the upper end of the valve stem, an inverted cup washer encircling the stembeneath the spider, and a coil spring encircling the valve stem with its upper end engaging the washer and its lower end acting upon the casing about the opening in the lower side of the globular body portion.

3. A filler cap comprising a casing including a globular body portion having tubular neck and sleeve portions disposed in axial alignment at the upper and lower sides of the globular body portion respectively and anattaching portion at the lower end of said sleeve portion, a guide arm extending across the opening thru the sleeve, afvalve including a disc having seating engagement with the lower end of the sleeve and astem' portion slidable thru said guide arm and projecting upwardly into the neck portion, a spider including radiallyextending arms carried by the upper end of the valve stem, an inverted cup-shaped washer encircling the valve stem and acting beneath the spider, and a conical expansion coil spring encircling the valve stem and acting between the washer and up per end ofsaid sleeve for normally urging the valve disc to a closed position.

. 4. A radiator cap comprising a casing em-' bodying a globular main, body portion, a tubular neck portion at the upper end of the globular body, a tubular internally threaded sleeve at the lower end of the globular body portion in axial alignment beneath the neck portion, and an attachingcap portion at the lower end of the sleeve portion, said sleeve portion having a tapering valve seat formed at its lower end, a-guide armhaving threadedv ends for threaded engagement in the sleeve to extend diametrically thereof and having a guide openingmidway the .ends thereof, a valve including a disc for seating upon the seat at the inner end of the sleeve portion' and a stem portion extending upwardly thru the guide arm opening into the neck portion, a push member threaded upon the upper end of the valve stem including radially projecting arms, an inverted cup-shaped washer encircling the valve stem beneath the push member, and an expansion coil spring encircling the valve stem and acting between the washer and upper end of the sleeve portion for norm ally urging the valve upwardly into a closed position. v

GEORGE A. FERRIER. 

